How It Works?

EvoFIT has a suspect identification rate of about 60 per cent – approximately ten times higher than traditional methods used, and, importantly, the system is no more expensive.

EvoFIT constructs facial composites of offenders by witnesses and victims of crime.

It is the result of over 15 years of intensive laboratory research, leading to more than 30 peer-reviewed technical papers, and police field trials—together providing the evidence for its effectiveness.

With EvoFIT, witnesses and victims select from screens of complete faces and a composite is ‘evolved’ over time. The system does not require eyewitnesses to have good recall of an offender’s face, unlike the traditional ‘feature’ methods, just to have seen it clearly. The approach aims to construct the most identifiable set of internal features, the central region of the face that is important for recognition by another person later (when seen by a police officer or member of the public).

This also allows a composite to be made in many more criminal cases than was possible in the past. The system has a large range of hairstyles, hats, caps and hoods. There are tools available to improve the likeness on demand, such as to change the perceived age, weight, masculinity, health and other global properties of the face – the ‘holistic’ tools. It is also possible to manipulate individual features of the face — eyes, nose, mouth, etc.

EvoFIT can be used with a dedicated artwork programme, including the industry standard Adobe Photoshop and Corel Paint Shop Pro. Our training package includes extensive training on these programmes along with annual technical support and annual training workshops.


The Beast of Bozeat

Example EvoFIT screenshot